diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
index bd550f6f..22679580 100644
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
@@ -39,7 +39,7 @@ abstract public class RobotAction extends Action {
             return ErrorCode.INVALID_PARAMETER;
         }
 
-        if (mLimitCounter.isGranted(rid)) {
+        if (!mLimitCounter.isGranted(rid)) {
             return ErrorCode.ERROR_CODE_OVER_FREQUENCY;
         }